Insulator



W. T- GODDARD- INSULATOR.

APPLICATION FILED 1uLY5,1919. RENEWED NOV. 1.1921.

Patented Aug. 22, 1922.

his A T'TORNEY' UNITED I STATES PATENT QFFECEU wALTldR T. GODDARIQ, OFROCHESTER, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- 3 JEORATION F MARYLAND.

i f MEI TS, TO'LOCKE INSULATOR CORPORATION, OF BALTIMORE, MARYLAND, ACOR- i ,nisULii'roR.

Tod-ll who'mfz't may concern:

Be it known that I, WALTER T. GODDARD, 'o'fRochest'er, county: ofMonroe, and State of New :Ydrlg-have invented certain new and aisnnemidvments1 in Insulators; and I 'dohereb'y' declare the following to be afull,

1clear;*'and"exact';description of the same,

ireference' fbeing"had to the accompanying drawings, *forming'a' part ofth s specificathereol il I i present-"invention"relates to electricalthrough the mass oi -thewealr'er oi the two elements, namely, therefractory insulating materialjthatthe-apparatus as a whole will be ableto iwith sta'n d larger strains than hitherto." Further objects of theinvention areto rovid e an insulator that can be economica 1y. producedand that will otter certain-advantages in the way of setting up orassembling. To these and other ends the inventionresides incertainimprovements and combinations of parts 'all' as will be hereinaftenmorefullydescribed, the novel features being pointed out'in'the claims atthe end of the specification.

In the drawings:

Figure 1 is a side view of a single menlator unit constructed inaccordance with and illustrating one embodiment of my invention;

Figure 2 is an enlarged fragmentary vertical section through one endthereof, and

Figure 3 is a top view.

Similar reference numerals throughout the several views indicate thesame parts.

Features of my invention are applicable to both suspension and pin typeinsulators, but I have, in the present instance, shown RenewedNovemben'i, 1921. ee; No. 51 3,555'f,

the invention embod ed ni a suspension insulator comprising generallyconnecting ele- Specification of Letters Patent. Patented'Aug-, 22,.1922

Applicationnled Jul 's, 1919, Serial No. 308,810.

ments A; and B at the respective endsof intermediate ver tic'ally' disposed insulator body C, the said-connecting elements"'fur nislnng meansabove and below for. attach- -ment to" thesu'pport and thethings'u'pported whether thesehe other units ofia' series or otherwise;The body portion is iii'tlie form of elongated mass of the i frangiblerefractory silicious materialprovided with a 'succes'sion'o'f skirtsrand otherwise fiesig'ned to'p roduce. the'longest possible" 'tancebetween points of conductivity of "possibleconductivity. Headed portions2' atthe ends of the'body C have arcingmings '3 clamped about them'injproper spaced'relm tion'shipby means of hands 4 'drawntogethor by bolts5. A's clearly fshownin Figure 3,

half of the ringand' half of the b and are made in one piece 'ine'achinstance:

"As eachend of the insulator body C is fitted with the same kind of acimnectinlg clement-a description of one will sutlice for both. Iprovide'the head 2 with "a plurality of lateral opcnings ti equally.spaced from each other and disposed successively. in

staggered relationship aronnd the periphery.

Inten e-(ting each suchopening is a vertical opening 7 proceedingdownwardly from the top or end face of th head These openings are flaredat the entrance thereto in each instance to facilitate th'e insertion ofthe connccting links. hwcinattcr descrihed'andthey constitute eyes at :i-numehr of"d'ifi"e'rent points to which attachmentis made and Wheresupporting strains-arc appliedso that such strain points may be numerousand the strains uniformly distributed through the mass of refractorymaterial and its resistance to fracture thereby greatly increased.

overlying the head 2 is a steel disc or plate 8 formed with a boss 9 atits center which is struck up to provide a socket 10 on the under orinner side of the plate and received in this socket is the enlarged endor button 11 of an eye 12, the shank 13 of which passes through anenlarged central opening 14: in the boss to give not only a swivellingbut a universal tilting freedom to the eye 12 in the manner of a balland socket joint. Because of this, strains applied to the insue558?WAiLABLl:

later laterally or angularly through the medium of the eye 12 areredirected axially of the refractory mass.

Of course, it is necessary not only that the points of the'applicationof strain to the frangible body 0 be uniformly distributed through themass, but that the strains be is provided for each bolt to give it anindi-.

vidualbearing upon the opposite side of the plate, the single bearingpoint of each rocker being indicated at 18. These act as equalizor's. tosymmetrically suspend the refractony body from-the bolt and the latteris in eachcase allowed a fair amount of slippage in ts eye so that itmay adjust itself to the direction ofstrain and absorb its proportion.

. The nuts 19. through the medium of which the strain on the bolts. iscommunicated to the rocker aretightened uniformly around the..discin;succession until the, rockers are .all level and each bolt is incontact with its respective eye. v With the universally movable eye 12,the rocking pressure at 18 at many points and the slippage of each Ubolt in its eye, there will then he no harsh strain localized at anyparticular point and the resisting power ofthe insulator as a whole tofracture will be greatly increased.

I claim as my invention:

1. In a strain insulator, the combination with a frangiblerefractoryelement of silicious material and a connecting element, oneofsaid elements being supported by the other to resist strains, saidrefractory element being provided with a plurality of eyes, ofindependent link members extending through theeyes and each having arocking bearing on the connecting element.

2. In a strain insulator, the combination with a frangible refractoryelement of silicious material'and a co'nnec-tingieleiqnhnt, one of saidelements being supported by the other to resist strains, said refractoryelement being provided with a plurality of eyes, of inextensible linksextendin through the eyes and each having an independent rocking bearingon the face of the connecting element away from said refractory element.

3. In a strain insulator, the .(io'n'ibin'ation with a frangiblerefractory element of, silicious' material having a plurality ofpassages therein and a connecting. element, one of said elements beingsupported by the other to resist strains, of a plurality oflink membersfor connecting said elements each of. said link members being.respectively adapted. to

extendthrough one of said passages,'the said passages being so locatedas. to distribute strains uniformly throughout themassof saidrefractory. element, each of said-,lmk members; also having anindependent rocking bearing on said connecting element.,..

4. In a straininsulator, thev combination witlra frangible refractoryelement, sili- ClOllSiHlZttBI'lill having aplurality of passages thereinand a connecting element, one of said elements beingsupported by the.other to resist strains, of a plurality of U-rboltsfor connecting saidelements, each of saidzU- Olts being respectively adapted to;extendthrough one of said passages,the said passages being So located asto distribute strains uniformly throughout the :mass of said refractoryelement, each of said. U-bolts having the; free ends. thereof connectedby ;a rocker,,said

rockers havinga bearing on the sand con? necting element 5. In a stralninsulator, the combination .witli' a frangible refractoryelementpfsilicious material having an annularattaching posed instaggered succession and. equally spaced about ,the periphery thereof,and a connecting element, of a plurality. :of ,inde' pendentinextensible link members extending portion provided with a plurality ofeyes disfreely through and engaged in the respective eyes and eachhaving a rocking bearlng on the connectmg element.

' WALTER T. ooli nalil).

